7422125520 has 40 divisors (see below), whose sum is σ = 23008589856. Its totient is φ = 1979233408.

The previous prime is 7422125497. The next prime is 7422125549. The reversal of 7422125520 is 255212247.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15462522 + ... + 15463001.

Almost surely, 2^7422125520 is an apocalyptic number.

It is an amenable number.

7422125520 is an abundant number, since it is smaller than the sum of its proper divisors (15586464336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7422125520 is a wasteful number, since it uses less digits than its factorization.

7422125520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30925539 (or 30925533 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 7422125520 is about 86151.7586587761. The cubic root of 7422125520 is about 1950.6353853179.

Adding to 7422125520 its reverse (255212247), we get a palindrome (7677337767).

The spelling of 7422125520 in words is "seven billion, four hundred twenty-two million, one hundred twenty-five thousand, five hundred twenty".